Superking fought against the Zookeeper and The Son of the Sun. When fighting against the Zookeeper, he used his robot powers to keep him from stealing the Quantum Gemerald. He succeeded in protecting the Gemerald, despite the escape of the Zookeeper. Later, after Morris gave away Clobberella’s secret identity, the Zookeeper kidnapped her parents. Because of this, the New Justice Team was forced to steal the Quantum Gemerald and give it to the Zookeeper so he would let go of her parents. When he fought The Son of the Sun, Superking helped him get over his fear of the dark.

Superking, along with the rest of the New Justice Team, retired mainly due to several factors. These factors include the New Justice Team stealing the Quantum Gemerald and therefore being criminals, and the team running out of miracle cream. He has only occasionally appeared since his retirement.